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Sony Alpha NEX-3N Disassembly and Shutter Repair

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  1. Sony Alpha NEX-3N Disassembly and Shutter Repair, Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 1, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair, Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 1, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair, Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 1, afbeelding 3 van 3
    • Start with removing the SD card, battery, and the lens from the camera.

  2. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 2, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 2, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 2, afbeelding 3 van 3
    • Remove the marked metric screws using a Philips #00 screwdriver. They are all identical.

  3. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 3, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 3, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 3, afbeelding 3 van 3
    • Remove the marked metric screws under the SD card door and the flash unit, using a Philips #00 screwdriver. They are all identical.

  4. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 4, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 4, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 4, afbeelding 3 van 3
    • Gently pry the flash button assembly away from the camera, remove the cover as seen in the photos.

  5. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 5, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 5, afbeelding 2 van 2
    • Gently remove the rear plastic cover by prying it off starting from the bottom edges.

  6. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 6, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 6, afbeelding 2 van 2
    • Free the LCD unit by removing two small black metric screws using Philips #00 screwdriver.

    • Gently unlock the ZIF connector as marked to remove the flat flex cable.

  7. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 7, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 7, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 7, afbeelding 3 van 3
    • Lift the locking tab up using a pair of tweezers and slide the rotating wheel button assembly upwards to free it.

    • Lift the button assembly up.

    • Remove the small metric screw using Philips #00 screwdriver.

  8. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 8, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 8, afbeelding 2 van 2
    • Pull the blue friction fit flat flex cable to remove the button assembly.

  9. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 9, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 9, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 9, afbeelding 3 van 3
    • Remove the black plastic flash plunger assembly.

    • Remove the screws marked on the body using Philips #00 screwdriver. There is one black metric screw and four silver self-tapping screws. See the next step for the type of screwdriver you need to reach the upper right screw.

  10. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 10, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 10, afbeelding 2 van 2
    • From the previous step, the upper right screw is buried deep in the assembly. Use a thin and long screwdriver.

  11. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 11, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 11, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 11, afbeelding 3 van 3
    • Gently pry off the movie button away from the plastic seat, and prepare to care for the flat flex cable leading to the button connector.

    • Pull the metal cover away slowly, removing it from the camera body.

  12. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 12, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 12, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 12, afbeelding 3 van 3
    • Remove the marked small metric screw using Philips #00 screwdriver.

    • Remove the metal and plastic shields.

  13. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 13, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 13, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 13, afbeelding 3 van 3
    • The mainboard has 8 flat flex cables connected to it. 2 of them are hidden behind.

    • One of the flex cables may have high voltage from the flash charge circuit, so be careful when touching around. The flex cable is at the back of the unit, in the area marked with red circle in the first photo.

    • The bottom two flat flex cables have ZIF connectors with locking tabs. The rest are pressure fit, just pull them away gently using tweezers.

  14. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 14, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 14, afbeelding 2 van 2
    • Remove all the flat flex cables carefully by pulling them.

  15. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 15, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 15, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 15, afbeelding 3 van 3
    • When removing the mainboard, be careful not to rip the microphone and speaker cables off.

    • Be careful with the high voltage flash circuitry as shown with the red circle in the first photo.

  16. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 16, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 16, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 16, afbeelding 3 van 3
    • Remove the flat flex cables from the sensor assembly by unlocking the lock tabs on ZIF connectors.

    • Remove the plastic cage battery holder by wiggling it out from its place.

    • Be careful about the high voltage flash charge circuitry, as shown in the last photo.

  17. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 17, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 17, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 17, afbeelding 3 van 3
    • Release the strap eyelet assembly by removing the silver self-tapping screw as marked in the first photo.

    • Remove 5 silver self-tapping screws as marked.

    • Remove the metal frame.

  18. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 18, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 18, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 18, afbeelding 3 van 3
    • Remove the lens mount, shutter and sensor assembly from the camera body.

    • Remove 3 marked silver self-tapping screws to release the sensor assembly. Pay attention to the sensor adjustment shims. Do not misplace them.

    • Do not touch the sensor surface. Keep it at a safe and clean location.

  19. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 19, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 19, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 19, afbeelding 3 van 3
    • Pay attention to the shim locations. Your camera may have different coloured and different number of shims.

    • Remove 3 marked black self tapping screws to release the shutter assembly.

  20. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 20, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 20, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 20, afbeelding 3 van 3
    • Gently remove the thin metal shield around the shutter unit. Pay attention to the tiny tab engaging with the circuit board, as marked in the first photo.

  21. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 21, afbeelding 1 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 21, afbeelding 2 van 3 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 21, afbeelding 3 van 3
    • This step is the actual repair procedure for the shutter error.

    • The error is caused by a weakened shutter return spring. Due to extensive use it doesn't have the power to close the shutter.

    • Normally the motor opens the shutter curtain and engages the mechanism with a small neodymium magnet.

    • When the electromagnet is activated, the neodymium magnet is disabled and the shutter curtain has to travel towards closing direction with the help of the return spring.

    • However, when the return spring is not strong anymore, it cannot move the curtain.

    • For repair, using a pair of tweezers, turn the spring adjustment wheel (the black round wheel with teeth, bottom one shown with red arrow) for 2-3 clicks towards the direction of green arrow. Compare the first and the last photo for the amount of rotation, it is only a tiny bit!

    • This should do it.

  22. Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 22, afbeelding 1 van 2 Sony Alpha NEX-3N Disassembly and Shutter Repair: stap 22, afbeelding 2 van 2
    • Re-assemble everything back in the same order of disassembly. Be careful when connecting the flat flex cables. It is very easy to damage them.

    • Test the camera. It should work now, but in case the error persists, try moving the spring adjustment wheel for one or two clicks more.

    • If it still doesn't work, you may need a new shutter assembly. There are plenty on sale, you can find it if you look for it.

    • Good luck!

Conclusie

To reassemble your device, follow these instructions in reverse order.

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Koray

Lid sinds: 03/05/17

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